* {
    touch-action: none;
}
html,body,ul,li,a,p,form,input,h1,h2,h3,h4,h5,h6,div {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}
body {
    font-family: '微软雅黑',sans-serif;
    font-size: 13px;
    /* height: 3000px; */
}
ul,
li {
    list-style: none;
}
a,
a:hover {
    text-decoration: none;
    color: #666;
}
input{
    /*1.清除文本框获取焦点时默认的边框阴影*/
    outline: none;
    border: 1px solid #ccc;
}

.f_left{
    float: left;
}
.f_right{
    float: right;
}
.clearfix::before,
.clearfix::after{
    content: "";
    display: block;
    height: 0;
    line-height: 0px;
    clear: both;
    visibility: hidden;
}